Lighting fixture



FIG. 1 is a top perspective view of a lighting fixture showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is another side elevational view thereof, taken at 90° from FIG.2;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a lighting fixture, as shown. 